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Related papers: Mirror Principle II

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Taking inspiration from [1, 21, 24], we develop a general framework to deal with the model theory of open incidence structures. In this first paper we focus on the study of systems of points and lines (rank $2$). This has a number of…

Logic · Mathematics 2024-12-03 Gianluca Paolini , Davide Emilio Quadrellaro

This monograph is on convex real projective structures on strongly tame n-orbifolds with some appropriate conditions on ends.

Geometric Topology · Mathematics 2025-09-03 Suhyoung Choi

Smooth complex surfaces polarized with an ample and globally generated line bundle of degree three and four, such that the adjoint bundle is not globally generated, are considered. Scrolls of a vector bundle over a smooth curve are shown to…

Algebraic Geometry · Mathematics 2007-05-23 Gian Mario Besana , Sandra Di Rocco

We prove that certain modules are faithful. This enables us to draw consequences about the reduction number and the integral closure of some classes of ideals.

Commutative Algebra · Mathematics 2007-05-23 Alberto Corso , Claudia Polini

In this paper we construct Ricci-positive metrics on the connected sum of products of arbitrarily many spheres provided the dimensions of all but one sphere in each summand are at least 3. There are two new technical theorems required to…

Differential Geometry · Mathematics 2019-11-19 Bradley Lewis Burdick

We consider a class of random billiards in a tube, where reflection angles at collisions with the boundary of the tube are random variables rather than deterministic (and elastic) quantities. We obtain a (non-standard) Central Limit Theorem…

Dynamical Systems · Mathematics 2025-07-21 Henk Bruin , Niels Kolenbrander , Dalia Terhesiu

A classification theorem is given of projective threefolds that are covered by a two-dimensional family of lines, but not by a higher dimensional family.

Algebraic Geometry · Mathematics 2007-05-23 Emilia Mezzetti , Dario Portelli

A slight modification to one of Tarski's axioms of plane Euclidean geometry is proposed. This modification allows another of the axioms to be omitted from the set of axioms and proven as a theorem. This change to the system of axioms…

Logic · Mathematics 2013-06-04 Timothy Makarios

This is the continuation of the article by the author that proves a broader class of families admitting the theorem of restriction of sections other than Abelian varieties and gives new examples of pseudo-N\'eron models. In this work, we…

Algebraic Geometry · Mathematics 2019-09-18 Santai Qu

In this paper we outline a setup for Homological Mirror Symmetry for manifolds of general type. Both Physics and Categorical perspectives are considered.

Algebraic Geometry · Mathematics 2015-03-13 Anton Kapustin , Ludmil Katzarkov , Dmitri Orlov , Mirroslav Yotov

In this paper, we intend to revisit Theorem 2 of [3] formulating it in a way that, weakening the hypotheses and, at the same time, highlighting the richer conclusion allowed by the proof, it can potentially be applicable to a broader range…

Functional Analysis · Mathematics 2013-10-30 Biagio Ricceri

Let M be a II_1 factor, A a masa in M and E the unique conditional expectation on A. Under some technical assumptions on the inclusion of A in M, which hold true for any semiregular masa of a separable factor, we show that for every…

Operator Algebras · Mathematics 2011-06-01 Martin Argerami , Pedro Massey

The ratio of convexity radius over injectivity radius may be made arbitrarily small within the class of compact Riemannian manifolds of any fixed dimension at least two. This is proved using Gulliver's method of constructing manifolds with…

Differential Geometry · Mathematics 2017-03-22 James Dibble

We prove the modularity of a positive proportion of abelian surfaces over $\mathbf{Q}$. More precisely, we prove the modularity of abelian surfaces which are ordinary at $3$ and are $3$-distinguished, subject to some assumptions on the…

Number Theory · Mathematics 2025-03-03 George Boxer , Frank Calegari , Toby Gee , Vincent Pilloni

In part I we reduced the arithmetic (characteristic zero) version of the P \not \subseteq NP conjecture to the problem of showing that a variety associated with the complexity class NP cannot be embedded in the variety associated the…

Computational Complexity · Computer Science 2007-05-23 Ketan D Mulmuley , Milind Sohoni

We develop the basic properties of $R^{(2)}$-modules, introduce the concept of zero divisor manifolds, construct projective $R^{(2)}$-space which generalizes the real projective space, and initiate the study of the counterpart of symplectic…

Symplectic Geometry · Mathematics 2025-05-14 Keqin Liu

Let R be any ring (with 1), \Gamma a group and R\Gamma the corresponding group ring. Let H be a subgroup of \Gamma of finite index. Let M be an R\Gamma -module, whose restriction to RH is projective. Moore's conjecture: Assume for every…

Group Theory · Mathematics 2007-05-23 Eli Aljadeff

We investigate the value distribution of holomorphic maps defined on one class of K\"ahler manifolds. With the very natural settings, we establish a Second Main Theorem which is of the similar form as ones of the classical Second Main…

Complex Variables · Mathematics 2022-05-19 Xianjing Dong , Peichu Hu

This paper gives an algebraic conjecture which is shown to be equivalent to Thurston's Geometrization Conjecture for closed, orientable 3-manifolds. It generalizes the Stallings-Jaco theorem which established a similar result for the…

Geometric Topology · Mathematics 2009-10-31 Robert Myers

Given a smooth projective variety $X$ with a simple normal crossing divisor $D:=D_1+D_2+...+D_n$, where $D_i\subset X$ are smooth, irreducible and nef. We prove a mirror theorem for multi-root stacks $X_{D,\vec r}$ by constructing an…

Algebraic Geometry · Mathematics 2022-11-04 Hsian-Hua Tseng , Fenglong You